Necessitate (verb)

To make something necessary or essential; to require as a necessary action or condition.

Origin:

From late latin necessitat-, past participle stem of necessitare ("to necessitate, make necessary"), from latin necessitatem ("necessity"), from necesse ("necessary").

Examples:

1. The situation necessitated immediate action.
2. The need for water necessitates the drilling of a well.
3. The circumstances necessitate that we change our plans.
4. The safety of the building necessitates regular maintenance.
5. The urgency of the matter necessitates that we act quickly.